The temperature on the rubber-based center court climbed to 113 degrees while Safin played through midday. The world No. 3 is playing in preparation for next week's Australian Open in Melbourne.

Conditions changed from hot and humid to wet and windy when a thunderstorm brought winds gusting up to 60 mph.

Trash blew across court when Roddick, who had led 5-2 in the second set, asked for an adjournment. Umpire Denis Overberg declined the request and the match continued.

Roddick, ranked No. 10, said it was impossible to play decent tennis.

"It was humorous out there. I mean, it wasn't … I mean I don't even know how to explain it," he said.

The 20-year-old American saved two match points with some unorthodox swipes and almost fell over laughing.

"It was match point, I was down 40-love, he was playing with the wind and I was against it. I literally took a grip and took full heaves at it," he said. "It normally would have gone out of the stadium, and it actually went in _ it was unbelievable."